Games like Doll
Games like Doll include What Remains of Edith Finch, Firewatch, Sally Face - Episode One, SOMA, and Layers of Fear (2016). We matched them by the tags players give Doll on Steam (Story Rich, Atmospheric, Horror, Walking Simulator, and Exploration): closest matches first, and among equally close ones the better-known games.

What Remains of Edith Finch
Shared: Story Rich · Atmospheric · Walking Simulator

Firewatch
Shared: Atmospheric · Story Rich · Walking Simulator

Sally Face - Episode One
Shared: Story Rich · Horror · Indie

SOMA
Shared: Horror · Atmospheric · Story Rich

Layers of Fear (2016)
Shared: Horror · Atmospheric · Walking Simulator

Hellblade: Senua's Sacrifice
Shared: Atmospheric · Story Rich · Female Protagonist

Amnesia: A Machine For Pigs
Shared: Story Rich · Horror · Atmospheric

Mouthwashing
Shared: Story Rich · Horror · Atmospheric

Outer Wilds
Shared: Story Rich · Exploration · Atmospheric

Little Nightmares
Shared: Atmospheric · Horror · Story Rich

Fran Bow
Shared: Story Rich · Horror · Indie

The Cat Lady
Shared: Story Rich · Horror · Indie

Little Nightmares II
Shared: Horror · Atmospheric · Story Rich

Detention
Shared: Horror · Atmospheric · Story Rich

GRIS
Shared: Atmospheric · Indie · Female Protagonist

Still Wakes the Deep
Shared: Horror · Story Rich · Walking Simulator

OMORI
Shared: Story Rich · Indie · Horror

The Medium
Shared: Horror · Atmospheric · Story Rich

Layers of Fear 2 (2019)
Shared: Horror · Atmospheric · Story Rich

DEATH STRANDING DIRECTOR'S CUT
Shared: Story Rich · Atmospheric · Walking Simulator

Gone Home
Shared: Walking Simulator · Atmospheric · Story Rich

A Plague Tale: Innocence
Shared: Story Rich · Atmospheric · Adventure

Oxenfree
Shared: Story Rich · Atmospheric · Indie

No, I'm not a Human
Shared: Horror · Story Rich · Atmospheric